Question

51.The new secretary is supposed to report to the manager as soon as he （ ）

（will arrive / arrives / is going to arrive / is arriving）
这题选什么。。理由是。。

Answer 1

as
soon
as解释为“一…就…”当他引导条件状语从句的时候，主从句时态一直，除非主句是将来时。当主句是将来时的时候，从句用一般现在时。但是，从句一般不会是一般将来时的。

Answer 2

arrives

as soon as 时间状语从句中用一般现在时代替将来时

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Answer 3

arrives
as soon as 一....就...... 一般现在时态